Sloping sites can present real problems including runoff and erosion. It can also be challenging to find ways to use this property. Sites like this can really benefit from the construction of a retaining wall to provide more level planting and recreation areas. A seatwall is basically a freestanding or retaining wall with a flat surface built into it for sitting. Each layer is built up to achieve the desired height using the same type of stone to create a stacked look. These beautiful features create an ideal setting for entertaining your family and friends.